A Sensor That Could Soon Make Homes Scary-Smart

IF YOU WANT to set up a connected home, you’ve got two options. You can buy a bunch of smart gadgets that may or may not communicate with other smart gadgets. Or you can retrofit all of your appliances with sensor tags, creating a slapdash network. The first is expensive. The second is a hassle. Before long, though, you might have a third choice: One simple device that plugs into an electrical outlet and connects everything in the room.